High Quality Silica Supplier & Manufacturer
Providing Industrial Grade Silica (≥ 99% SiO₂) for Rubber, Coatings, Food, Cosmetics, Construction and Specialty Chemical Applications Worldwide. Securing your supply chain with a 300,000 MT annual production capacity.
Why Global Manufacturers Choose Our Silica
We solve supply chain constraints by offering stable production capacity, strict moisture control, and comprehensive export documentation for B2B buyers.
30+ Years Manufacturing Experience
Deep chemical industry expertise. We understand the precise dispersion requirements and rheological properties needed for your specific compounding processes.
Global Export Capability
Currently exporting to 50+ countries. Familiar with international palletizing standards, container loading optimization, and customs clearance procedures.
Consistent Product Quality
Strict QC management. Every batch undergoes surface area (BET) and moisture testing before packaging to prevent agglomeration in your final product.
Competitive Factory Price
Direct manufacturer supply eliminates middleman margins. We offer tiered pricing for bulk FCL (Full Container Load) orders to support your cost reduction goals.
Complete Technical Support
Full documentation ready for compliance. COA, MSDS, TDS, and REACH certificates are provided with every shipment for seamless inbound quality inspection.
Fast Delivery
Maintaining stable inventory of standard grades. Our integrated logistics network ensures prompt dispatch from the factory to major seaports within days.
CAS Number: 7631-86-9 | Formula: SiO₂
What Is Silica?
Silica, chemically known as Silicon Dioxide (SiO₂), is an essential inorganic material utilized as a performance-enhancing additive across multiple manufacturing sectors. Depending on your production constraints—whether you need rheology control in liquid systems or reinforcement in solid matrices—we provide specific structural forms:
- Precipitated Silica
- Fumed Silica
- Silica Fume
- Colloidal Silica
By manipulating the specific surface area and particle size during our manufacturing process, our silica acts as a critical functional filler. It is widely used in formulating:
Silica Product Categories
Select the appropriate silicon dioxide grade designed for your specific manufacturing constraints and application requirements.
Precipitated Silica
Produced via wet process. Offers medium to high surface area, ideal for mechanical reinforcement and reducing rolling resistance.
- • Rubber & Tires
- • Footwear Soles
- • Animal Feed Carrier
Fumed Silica
Flame hydrolysis process yields extremely fine particle size and high surface area. Essential for thixotropic control.
- • Coatings & Paints
- • Sealants
- • Silicone Rubber
Hydrophilic Fumed Silica
Untreated silica with hydroxyl groups on the surface. Provides excellent thickening and anti-settling properties in polar systems.
- • Paints & Varnishes
- • Adhesives
- • Printing Inks
Hydrophobic Fumed Silica
Surface-treated to repel water. Crucial for non-polar liquid systems requiring moisture resistance and rheology stabilization.
- • Silicone Sealants
- • Electronics Encapsulation
- • Epoxy Resin Systems
Technical Specifications
Standard parameters for our industrial-grade precipitated silica. We maintain strict batch-to-batch consistency to ensure your production yields remain stable. Specific surface area and particle size can be customized to match your existing formulation requirements.
| Test Item | Standard Specification | Impact on Application |
|---|---|---|
| Appearance | White Powder / Granular | Ensures no color interference in end products. |
| SiO₂ Content (Dry Basis) | ≥ 99% | High purity prevents unwanted chemical reactions. |
| Specific Surface Area (BET) | Customized (e.g., 150-200 m²/g) | Determines reinforcement strength and thickening efficiency. |
| pH Value (5% aqueous suspension) | 6.0 - 8.0 | Neutral pH ensures compatibility with various resin matrices. |
| Heating Loss (Moisture) | ≤ 5.0% | Strict control prevents blistering during curing processes. |
| Average Particle Size | Customized (e.g., 10-20 μm) | Optimized for easy dispersion without prolonged milling. |
| Bulk Density | Customized | Affects transportation volume and mixer loading capacity. |
| Standard Packing | 10kg / 20kg / 25kg Multi-wall Paper Bags | Moisture-proof design for long-distance ocean freight. |
* Note: The above parameters are for standard precipitated silica. Specifications for fumed silica and custom grades vary. Please contact us for exact TDS matching your CAS requirement.
Industries We Serve
Supplying functionally optimized SiO₂ powder to global production facilities across 8 major sectors.
Rubber Industry
Tire reinforcement & tear resistance
Coatings Industry
Matting and thickening agent
Adhesives & Sealants
Rheology and sag control
Food Industry
Free-flow anti-caking agent
Cosmetics
Oil absorption & texture improvement
Agriculture
Active ingredient carrier
Construction
Concrete strength enhancement
Electronics
Insulation materials & CMP slurries
Are You Facing These Silica Sourcing Challenges?
Procurement managers frequently encounter production bottlenecks due to unreliable raw material suppliers. We address these critical constraints directly.
Common Pain Points
- ❌ Inconsistent Quality: Variations in surface area causing unpredictable viscosity in your paint formulations.
- ❌ High Moisture Content: Moisture exceeding 5% leading to internal blistering during rubber vulcanization.
- ❌ Poor Dispersion Performance: Agglomerated particles increasing your milling time and energy costs.
- ❌ Unstable Supply & Long Delivery: Factory capacity limits causing raw material shortages for your continuous lines.
- ❌ Missing Technical Documents: Delays in customs clearance due to absent REACH or updated MSDS files.
Guaranteed Stability & Support
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Strict Quality Control Automated drying processes guarantee moisture ≤ 5%, preventing curing defects.
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Customized Specifications Tailored particle size distribution (e.g., 10-20 μm) for instant dispersion in your specific mixer type.
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Stable Production Capacity 300,000 MT annual capacity ensures we fulfill bulk FCL orders without lead-time fluctuations.
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Complete Documentation COA provided per batch. MSDS, TDS, and export certifications ready prior to shipment.
Application Gallery
Real-world manufacturing scenarios utilizing our Silicon Dioxide.
Tire Manufacturing: Tread Reinforcement
Paint Production: Matting Agent
Silicone Sealants: Thixotropy Control
Food Processing: Powder Flowability
Cosmetics: Emulsion Stabilization
Construction Materials: Densification
Production & Quality Control Flow
Our standardized manufacturing process ensures consistent physical and chemical properties. Every stage is monitored to prevent contamination and maintain precise particle sizing.
Standard Packaging & Global Shipping
Secure Packaging for Export
Silicon dioxide is highly hygroscopic. We utilize multi-layer moisture-proof packaging to ensure the material arrives at your facility with moisture levels strictly ≤ 5%, ready for immediate compounding.
Available Packaging Options:
- 10kg Multi-wall Paper Bags
- 20kg Kraft Paper Bags
- 25kg Woven Bags with Liner
- 400kg - 800kg Jumbo Bags
Logistics & Transportation:
- Truck Delivery (Domestic)
- Sea Freight (FCL/LCL)
- Rail Freight
* Palletization and shrink-wrapping available upon request to optimize container space and forklift handling.
Frequently Asked Questions
Technical answers regarding Silica procurement, specifications, and application selection.
What Is Silica Used For?
What Is The Difference Between Silica And Silicon?
What Is The Difference Between Precipitated Silica And Fumed Silica?
The primary difference lies in the manufacturing process and resulting surface area, which dictates their industrial application:
| Feature | Precipitated Silica | Fumed Silica |
|---|---|---|
| Production | Wet Process (Precipitation) | Flame Hydrolysis (Dry) |
| Surface Area | Medium (e.g., 100-250 m²/g) | High (e.g., 150-400 m²/g) |
| Cost | Lower (Bulk usage) | Higher (Specialty usage) |
| Main Use | Rubber reinforcement, Feed | Coatings, Sealants, Thixotropy |
How To Choose The Right Silica For My Production?
Selection depends strictly on your resin system and desired physical outcome. Use this basic decision framework:
- Rubber Industry (Tires, Soles): → Choose Precipitated Silica for mechanical tear strength.
- Paint & Liquid Coatings: → Choose Hydrophilic Fumed Silica for anti-settling.
- Silicone Sealants & Epoxies: → Choose Hydrophobic Fumed Silica for moisture resistance.
- Food & Feed Additives: → Choose Food Grade Precipitated Silica (Anti-caking).
Is Silica Safe? What Is The CAS Number?
CAS Number: 7631-86-9 (Silicon Dioxide). We provide full MSDS documentation for occupational safety compliance.
Related Chemical Raw Materials
Looking For A Reliable Silica Supplier?
Avoid production delays caused by inconsistent raw materials. Get precise technical data, free samples, tiered pricing, and professional export support from our expert team.
Email Us
info@changschem.comCall / WhatsApp
+86 186 6063 0765Factory Location
WEIFANG CITY, SHANDONG PROVINCE, CHINA
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Partner with a Global Chemical Leader
Provide your requirements, and our technical sales team will get back to you with tailored specifications and competitive pricing.
Email Us
info@changschem.com
Call Us
+8618660630765
Headquarters
WEIFANG CITY,SHANDONG PROVINCE, CHINA